RU2738069C1 - Telescopic design of linear engine for sliding door - Google Patents

Abstract

FIELD: engine building.

SUBSTANCE: present invention relates to sliding design of linear engine for sliding door, characterized by that this invention comprises rotor assembly. Rotor assembly comprises fixed part and moving part. Fixed part is equipped with permanent magnet, and guide is provided under constant magnet. Movable part is equipped with a sliding rod capable of shifting in one end of the guide and a part for movement transfer for transfer of the rotor movement in assembly. Movable part and the fixed part are rigidly connected by means of a fastening element located between them. Present invention has innovative design and practical structure.

EFFECT: present invention provides flexible adjustment of the rotor assembly in accordance with the width of the door frame and is well adaptable.

10 cl, 16 dwg

Description

The technical field to which the invention relates

[0001] The present invention relates to a linear motor structure, and in particular relates to a telescopic linear motor structure for a sliding door.

Background of the invention

[0002] A linear motor typically comprises a stator assembly and a rotor assembly, with the stator assembly mounted and secured over the guide and the rotor assembly equipped with a permanent magnet, mounted parallel to the stator assembly, and spaced from the stator assembly. During operation, the controller changes the electric current in the stator assembly, the rotor assembly, equipped with a permanent magnet, is set in motion, moving to the left or right in the guide, thanks to the principle of electromagnetic induction, then the rotor assembly is connected to the door body to transmit the movement to the door body itself and thus the door body is opened or closed. In the prior art, the rotor assembly usually cannot be adjusted, the prepared rotor assembly can only be applied to a door frame with a certain width, but for other door frames with different widths, it is necessary to reproduce the assembled rotors corresponding to door frames with different widths. In other words, the rotor assembly in the prior art is used only when it does not need to be modified and cannot be adapted to door frames with different widths. Thus, it is necessary for the manufacturer to design a specific rotor assembly for each door frame width, and thus disadvantages such as many variations and relatively high cost arise.

Brief description of the invention

[0003] An object of the present invention is to overcome the drawbacks of the prior art to provide a telescopic linear motor structure for a sliding door. The design of the linear motor has an innovative design, practical structure and is able to adapt to door frames with different widths due to the flexible adjustment of the length of the rotor assembly.

[0004] To overcome the aforementioned disadvantages, the present invention provides the following technical solution:

[0005] a telescopic linear motor design for a sliding door is provided, and

[0006] the telescopic structure of a linear motor for a sliding door comprises a rotor assembly, the rotor assembly comprising a stationary part and a movable part, the stationary part is equipped with a permanent magnet, a slot is formed in the lower part of the permanent magnet, the movable part is equipped with a telescopic rod inserted with the possibility of sliding into the groove hole from one end of the groove hole, and a motion transmission part capable of transmitting the movement of the rotor assembly, and wherein the movable part and the stationary part are fastened with a fastening element.

[0007] In the prior art, the rotor assembly usually cannot be adjusted, the prepared rotor assembly can only be applied to a door frame with a certain width, but for other door frames with different widths, the corresponding rotors must be reproduced. In other words, the rotor assembly in the prior art is used only when it does not need to be modified and cannot be adapted to door frames with different widths. Thus, it is necessary for the manufacturer to design a specific rotor assembly for each door frame width, and thus disadvantages such as many variations and relatively high cost arise. To solve this problem, the present invention provides a telescopic linear motor structure for a sliding door, and in particular, provides a telescopic rotor assembly. The rotor assembly contains a stationary part and a movable part, the permanent magnet is installed on the stationary part, and the permanent magnet part is open from the outside; the open part is located under the stator assembly; and in use, when the stator assembly is energized, the stationary part of the rotor assembly located under the stator assembly moves left or right along the guide by the magnetic force due to the principle of electromagnetic induction. In the lower part of the permanent magnet, a slot hole is formed, the telescopic rod of the movable part is inserted into the slot hole and can be moved to the left or right in the slot hole, and the movable part is additionally equipped with a movement transmission part that is connected to the door body and can transmit the movement of the rotor assembly to the body doors. The stationary part can be shifted to the left and right under the action of the magnetic field, the movable part is inserted into the slot hole by means of a telescopic rod and, therefore, in order to transfer the shift from the stationary part to the movable part, it is necessary that the movable part and the stationary part be connected and fastened with a fastening element.

[0008] Thus, for cases where the widths of the door frames are different, the rotor assembly can be lengthened or shortened only by adjusting the length of the telescopic rod inserted into the slot hole. More precisely, the telescopic rod is pulled slightly more out of the slot hole when the door frame is wider, and the telescopic rod is pulled slightly less out of the slot hole when the door frame is narrower. In other words, the length that the telescopic rod is pulled out of the slot hole can be flexibly adjusted according to different requirements, so that the rotor assembly can be used for various applications where the door frame widths differ and the rotor assembly has the advantage of being versatile. When the length of the telescopic rod is adjusted according to the specific case, the movable part and the stationary part are connected and fastened with a fastening element, so that the movable part and the stationary part can be shifted synchronously, and the shift can be further transmitted to the door body through the movement transmission part on the movable part for to open or close the door body.

[0009] In addition, in one embodiment, the stationary part is divided into an upper part and a lower part, the upper part of the stationary part being longer than the lower part of the stationary part, and a slot hole is formed between the upper part and the lower part for inserting a telescopic rod. The purpose of this arrangement is to cause the motion transmission portion of the movable portion to move so as to be under the upper portion of the stationary portion and in contact with the end portion of the lower portion of the fixed portion. Thus, the entire rotor assembly can be further shortened to accommodate a narrower door frame so that the usability of the rotor assembly is maximized.

[0010] In addition, one end of the telescopic rod is inserted into the groove hole, the other end of the telescopic rod is connected to the idler wheel, the upper part of the idler wheel is able to slide in the groove hole and slide towards the end of the lower part of the fixed part, the two sides of the idler wheel are equipped with wheels, and the motion transmission portion is disposed in the middle of the idler wheel.

[0011] In addition, one end of the telescopic rod is inserted into the slot hole, and the length of the portion of the telescopic rod pulled out from the slot hole is adjusted according to the actual need, so that the telescopic function of the rotor assembly is achieved. The other end of the telescopic rod is connected to the guide wheel, the upper part of the guide wheel is able to slide in the slot hole, and when the door frame is narrower, the guide wheel follows the telescopic rod in order to move in the slot hole, can slide to the end of the lower part of the fixed part and can be located under the upper part of the stationary part and thus the rotor assembly can be adapted to a narrower door frame. Additionally, the motion transmission part is located in the middle of the idler wheel, in use, the motion transmission part is connected to the door body, and the idler wheel causes the door body connected to the motion transmission part to move synchronously following the telescopic rod to slide in the guide. The two sides of the guide wheel are additionally equipped with wheels; on the one hand, the wheels can slide along the guide and participate in the direction of the door body, and on the other hand, the wheels also carry the weight of the door body.

[0012] In addition, the other end of the stationary part is equipped with an independent guide wheel without a telescopic rod. As mentioned above, the steering wheel connected to the telescopic rod is connected to one end of the door body by means of a motion transmission portion, and the other end of the door body must be connected in the same way to maintain balance. In particular, the other end of the stationary part is equipped with an independent guide wheel containing a mounting block, two sides of the mounting block are equipped with wheels and the two sides of the upper part of the mounting block are symmetrically equipped with insertion parts that can be inserted in different positions of the rotor assembly in the length direction rotor assembly. Thus, the top of the independent idler can slide inwardly to the slot when the door frame is narrower, and the top of the independent idler can separate from the slot and connect to the door body at a position farthest from one end of the stationary portion when the door frame wider. In other words, the limitation of the length of the stationary part can be violated by placing an independent idler without a telescopic bar at the other end of the stationary part, and thus further increases the range of applicable door frame widths.

[0013] In addition, the set of independent wheels is further positioned between the independent idler wheel and the lower part of the fixed part, and the upper part of the set of independent wheels is displaceable in the slot hole, the front and rear sides of the set of independent wheels are equipped with wheels, and the set of independent wheels is equipped with a fastening hole for mutual fastening with a fixed part. Since the upper part of the stationary part is longer than the lower part of the stationary part, when the upper part of the set of independent wheels is located in the slot hole, the independent idler plays a role in supporting the upper part of the stationary part to prevent deformation of the upper part of the stationary part. When the upper part of the independent idler is separated from the slot hole, some part that is longer than the lower part of the stationary part, the upper part of the stationary part is unsupported, leading to the risk of deformation over time. To eliminate this risk, a set of independent wheels is positioned on said part to support the upper part of the stationary part in order to prevent deformation of the upper part of the stationary part. The upper part of the set of independent wheels can be slid in the slot hole; when the door frame is narrower, the upper part of the independent idler is slid to the inside of the slot and the set of independent wheels can be slid to the end of the lower part of the stationary part to make room for the independent idler; and when the door frame is wider, the top of the independent idler is separated from the slot and the set of independent wheels can slide toward the outer end of the slot to support the top of the stationary portion. The set of independent wheels is additionally equipped with a mounting hole; after adjusting the position of the set of independent wheels, the set of independent wheels can be attached and secured to the stationary part by means of a fixing hole to avoid unnecessary movement in the slot hole. In addition, the two sides of the set of independent wheels are additionally equipped with wheels, by means of which the fixed part can be better moved on the track.

[0014] In addition, in another embodiment, two movable portions are provided respectively inserted into the slot hole at the left and right ends. In one embodiment, the two movable parts are equipped with telescopic rods and movement transmission parts and are arranged mirror-symmetrically. In use, the left and right movable parts are simultaneously pulled out of the slot hole to certain lengths according to the actual width of the door frame, the length to which they are pulled is longer when the door frame is wider and the length to which they are pulled is less in the case when the door frame is narrower, and thanks to this adjustment, the moving parts can be used with door frames with different widths.

[0015] In addition, a groove is provided inside the telescopic rod into which a movement transmission portion can be slidably inserted.

[0016] In addition, in this embodiment, the motion transmitting portion has a T-shaped structure and includes a vertical bar and a horizontal profile, the vertical bar being connected to the door body to transmit the movement of the rotor assembly to the door body to force the door body move with it, and the horizontal profile is inserted into the groove of the telescopic rod in such a way as to be attached to the telescopic rod and form one piece with it.

[0017] In addition, a particular method for fixing the horizontal profile and the telescopic rod is that the horizontal profile is provided with a screw hole, and the screw is installed in and screwed into the screw hole when fastening is required.

BRIEF DESCRIPTION OF THE GRAPHIC MATERIALS

[0018] In order to more clearly describe the technical solutions in the embodiments of the present invention or in the prior art, the accompanying graphics necessary to describe the embodiments or the prior art will be briefly presented below. Obviously, in the accompanying drawings in the following description, only some embodiments of the present invention are shown and those skilled in the art, without any creative effort, can also obtain other accompanying drawings based on the designs shown in these accompanying drawings.

[0019] FIG. 1 shows an exploded view of Embodiment 1;

[0020] in FIG. 2 is a perspective view of the fixed part in Embodiment 1;

[0021] in FIG. 3 is a left side view of FIG. 2;

[0022] in FIG. 4 is a perspective diagram showing a permanent magnet and wheels installed in Embodiment 1;

[0023] in FIG. 5 is a perspective view of the movable part in Embodiment 1;

[0024] in FIG. 6 is a perspective view of the independent idler in Embodiment 1;

[0025] in FIG. 7 is a perspective view of a set of independent wheels in Embodiment 1;

[0026] in FIG. 8 is a schematic diagram showing the rotor assembly in Embodiment 1 mounted on a wider door body;

[0027] in FIG. 9 is a schematic diagram showing the rotor assembly in Embodiment 1 mounted to a narrower door body;

[0028] in FIG. 10 is an exploded view of Embodiment 2;

[0029] in FIG. 11 is a perspective view of the motion transmission portion in Embodiment 2;

[0030] in FIG. 12 is a schematic assembly diagram showing a motion transmission portion in Embodiment 2;

[0031] in FIG. 13 is a schematic assembly diagram showing a motion transmission part and a telescopic rod in Embodiment 2;

[0032] in FIG. 14 is a schematic assembly diagram showing the rotor assembly in Embodiment 2;

[0033] in FIG. 15 is a schematic diagram showing the rotor assembly in Embodiment 2 mounted on a wider door body; and

[0034] in FIG. 16 is a schematic diagram showing the rotor assembly in Embodiment 2 mounted on a narrower door body.

[0035] Symbols in the accompanying drawings represent the following:

[0036] a rotor 1 assembly, a stationary part 11, a slot 112, an upper part 114 of a stationary part, a lower part 115 of a stationary part, a wheel 12, a movable part 13, a telescopic rod 14, a movement transmission part 15, a vertical rod 151, horizontal profile 152, screw hole 153, screw 154, guide wheel 16, fastener 19, independent guide wheel 20, set of 18 independent wheels, fastening hole 181,

[0037] the stator 2 assembly,

[0038] guide 3,

[0039] a door body 4.

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

[0040] The technical solutions in the embodiments of the present invention will be described hereinafter in a complete and clear manner in combination with the accompanying drawings by way of example of the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on embodiments of the present invention without creative effort will fall within the protection scope of the present invention.

[0041] It should be noted that all direction indicators (such as "up", "down", "left", "right", "front", "back", "outside", "inside", etc.) in the embodiments of the present invention are only intended to explain the relative location, driving conditions, and the like among all the components in a certain position (as shown in the accompanying drawings), and if this certain position changes, the direction indicators change accordingly.

[0042] The telescopic design of a linear motor for a sliding door as shown in FIG. 1 and FIG. 10, contains an assembled rotor 1, and the assembled rotor 1 contains a stationary part 11 and a movable part 13, while the stationary part 11 is equipped with a permanent magnet 111, a slot 112 is formed in the lower part of the permanent magnet 111, and the movable part 13 is equipped with a telescopic rod 14 which can be slidably inserted into the groove 112 from one end of the groove 112, and a motion transmission part 15 capable of transmitting the movement of the rotor 1 assembly, and wherein the movable part 13 and the stationary part 11 are fastened with a fastening element 19.

[0043] In the prior art, the assembled rotor 1 usually cannot be adjusted, the assembled rotor 1 prepared can only be applied to a door frame with a certain width, but for other door frames with different widths, the corresponding assembled rotors 1 must be reproduced. In other words, the rotor assembly 1 in the prior art is used only when it does not need to be changed and cannot be adapted to door frames with different widths. Thus, it is necessary for the manufacturer to design a specific rotor assembly 1 for each door frame width, and thus disadvantages such as multiple variations and relatively high cost arise. To overcome the drawbacks, the present invention provides a telescopic structure of a linear motor for a sliding door, and in particular, provides an assembled telescopic rotor 1; the assembled rotor 1 comprises a stationary part 11 and a movable part 13, a permanent magnet 111 is mounted on the stationary part 11, a part of the permanent magnet 111 is open from the outside, and the open part is located under the assembled stator 2; and in use, when the stator assembly 2 is energized, the stationary portion 11 of the rotor assembly 1 located under the assembly stator 2 moves to the left or right along the guide 3 due to the magnetic field force due to the electromagnetic induction principle. A slot 112 is also formed in the lower part of the permanent magnet 111, a telescopic rod 14 of the movable part 13 is inserted into the slot 112 and can be moved to the left or right in the slot 112, and the movable part 13 is additionally equipped with a movement transmission part 15, which is connected to the body 4 doors and can transmit the movement of the rotor assembly 1 to the door body 4. The stationary part 11 can be shifted to the left and right under the action of the magnetic field, the movable part 13 is inserted into the slot 112 by means of a telescopic rod 14 and, therefore, to transfer the shift from the stationary part 11 to the movable part 13, it is necessary that the movable part 13 and the stationary part 11 were connected and fastened with fastener 19.

[0044] Thus, for cases where the widths of the door frames are different, the rotor 1 assembly can be lengthened or shortened only by adjusting the length of the telescopic rod 14 inserted into the slotted hole 112, namely, the telescopic rod 14 is pulled slightly more from the slotted hole 112 when the door frame is wider, and the telescopic bar 14 is pulled slightly less out of the slot 112 when the door frame is narrower. In other words, the length by which the telescopic rod 14 is pulled out of the slot 112 can be flexibly adjusted according to different requirements, so that the assembled rotor 1 can be used for different cases where the door frame widths are different and has good versatility. When the length of the telescopic rod 14 is adjusted according to the specific case, the movable part 13 and the stationary part 11 can be connected and fastened by means of the fastening element 19, so that the movable part 13 and the stationary part 11 can move synchronously, and the shift can then be transmitted to the door body 4 by means of part 15 for transmitting motion on the movable part 13 in order to open or close the door body.

[0045] Additionally, in one embodiment, as shown in FIG. 2 to FIG. 9, the stationary part 11 is divided into an upper part 114 and a lower part 115, the upper part 114 of the stationary part being longer than the lower part 115 of the stationary part, and a slot 112 is formed between the upper part 114 and the lower part 115 for inserting the telescopic rod 14. The purpose of this placement is to cause the motion transmission portion 15 of the movable portion 13 to move so as to be under the upper portion 114 of the fixed portion and in contact with the end portion of the lower portion 115 of the fixed portion; thus, the complete rotor 1 assembly can be further shortened in order to accommodate a narrower door frame, so that the usability of the complete rotor 1 is maximized.

[0046] In addition, one end of the telescopic rod 14 is inserted into the slotted hole 112, the other end of the telescopic rod 14 is connected to a guide wheel 16 capable of sliding in the slotted hole 112, the two sides of the guide wheel 16 are equipped with wheels 12, and a portion 15 for transmitting motion located in the middle of the idler wheel 16.

[0047] In addition, one end of the telescopic rod 14 is inserted into the slotted hole 112, and the length of the portion of the telescopic arm 14 pulled out from the slotted hole 112 is adjusted according to the actual need, so that the telescopic function of the rotor assembly 1 is achieved. The other end of the telescopic bar 14 is connected to the deflector wheel 16, the top of the deflector 16 is movable in the slot 112, and when the door frame is narrower, the top of the deflector 16 follows the telescopic bar 14 in order to slide in the slot 112. can be slid towards the end of the lower part 115 of the stationary part and can be located under the upper part 114 of the stationary part and thus the rotor 1 assembly can be adapted to a narrower door frame. Additionally, the motion transmission portion 15 is located in the middle of the guide wheel 16, in use, the motion transmission portion 15 is connected to the door body 4, and the guide wheel 16 causes the door body 4 connected to the guide wheel 16 to move synchronously following the telescopic rod 14 to to slide in the guide 3. The two sides of the guide wheel 16 are additionally equipped with wheels 12, on the one hand, the wheels 12 can slide along the guide 3 and participate in the direction of the door body 4, and on the other hand, the wheels 12 also bear the weight of the door body 4.

[0048] In addition, the other end of the stationary part 11 is equipped with an independent guide wheel 20 without a telescopic rod 14. As mentioned above, the guide wheel 16 connected to the telescopic rod 14 is connected to one end of the door body 4 through a movement transmission portion 15, and to maintain balance, the other end of the door body 4 must be connected in the same way. In particular, the other end of the stationary part 11 is equipped with an independent guide wheel 20 containing a mounting block, two sides of the mounting block are equipped with wheels 12 and the two sides of the upper part of the mounting block are symmetrically equipped with insertion parts that can be inserted in different positions of the rotor 1 in assembly in the direction of the length of the rotor 1 assembly. Thus, the top of the independent idler 20 can slide inwardly to the slot 112 when the door frame is narrower, the top of the independent idler 20 can separate from the slot 112 and connect to the door body 4 at a position farthest from one end of the stationary portion 11 when the door frame is wider. In other words, the length limitations of the stationary part 11 can be overcome by placing an independent guide wheel 20 without telescopic rod 14 at the other end of the stationary part 11, and thus further increases the range of adjustable door frame widths.

[0049] In addition, the independent wheel set 18 is further located between the independent idler wheel 20 and the lower part 115 of the stationary part, and the upper part of the independent wheel set 18 is displaceable in the slot 112, the front and rear sides of the independent wheel set 18 are equipped with wheels 12, and the independent wheel set 18 is provided with an attachment hole 181 for interlocking with the stationary part 11. Since the upper part 114 of the stationary part is longer than the lower part 115 of the stationary part, when the upper part of the independent wheel set 18 is located in the slot hole 112, the independent idler 20 plays a role in supporting the upper part 114 of the stationary part to prevent deformation of the upper part 114 of the stationary part. When the upper part of the independent idler 20 is separated from the slot hole 112, some part that is longer than the lower part 115 of the stationary part, the upper part 114 of the stationary part is unsupported, resulting in the risk of deformation over time. To eliminate this risk, a set of independent wheels 18 is positioned on said portion to support the upper portion 114 of the fixed portion in order to prevent deformation of the upper portion 114 of the fixed portion. The top of the set of independent wheels 18 is movable in the slot 112; when the door frame is narrower, the upper part of the independent idler 20 is slid into the slot 112 and the set 18 of independent wheels can be slid towards the end of the lower part 115 of the stationary part to make room for the independent idler 20; and when the door frame is wider, the top of the independent idler 20 is separated from the slot 112 and the set 18 of independent wheels can slide towards the outer end of the slot 112 to support the upper 114 of the stationary portion. The set of 18 independent wheels is additionally equipped with a fixing hole 181, after adjusting the position of the set of 18 independent wheels, the set of 18 independent wheels can be connected and fixed to the fixed part 11 by means of the fixing hole 181 to avoid unnecessary movement in the slot 112. In addition, the two sides of the set 18 independent wheels are additionally equipped with wheels 12, by means of which the stationary part 11 can better move on the guide 3.

[0050] In addition, in another embodiment, as shown in FIG. 11 to FIG. 16, two movable portions 13 are provided, respectively inserted into the slot 112 at the left and right ends. In one embodiment, the two movable parts 13 are respectively equipped with a telescopic rod 14 and a movement transmission part 15 and are arranged mirror-symmetrically. In use, the left and right movable parts 13 are simultaneously pulled out of the slot 112 by certain lengths according to the actual width of the door frame, the length to which they are pulled is greater when the door frame is wider and the length to which they are pulled is smaller when the door frame is narrower, and thanks to this adjustment, the movable parts 13 can be used with door frames with different widths.

[0051] In addition, a groove is provided inside the telescopic rods 14 into which the movement transmission portion 15 can be slidably inserted.

[0052] In addition, in this embodiment, the motion transmission portion 15 has a T-shaped structure and comprises a vertical bar 151 and a horizontal profile 152, the vertical bar 151 being connected to the door body 4 to transmit the movement of the rotor 1 assembly to the door body 4 in order to cause the door body 4 to move with it, and the horizontal profile 152 is inserted into the groove of the telescopic rod 14 so as to be attached to and integral with the telescopic rod 14.

[0053] In addition, a particular method for attaching the horizontal profile 152 and the telescopic rod 14 is that the horizontal profile 152 is provided with a screw hole 153, and the screw 154 is installed in and screwed into the screw hole 153 when fastening is required.

[0054] Although the present invention has been described above with reference to certain embodiments, various improvements can be made to the present invention and components in the present invention may be replaced by equivalents without departing from the scope of the present invention. In particular, all the features in all the embodiments disclosed in the present invention can be combined with each other in any way, and the lack of an exhaustive description of these combinations in this technical description is justified only by brevity and economy of resources. Therefore, the present invention is not limited to the specific embodiments described herein, but includes all technical solutions within the scope of the claims.

Claims (20)

1. Telescopic design of sliding door linear motor, characterized in that it contains: rotor (1) assembled, and the rotor (1) assembled contains a stationary part (11) and a moving part (13), while the stationary part (11) is equipped with a permanent magnet (111) and is located in the lower part of the permanent magnet (111) groove hole (112), the movable part (13) is equipped with a telescopic rod (14), which is inserted with the possibility of shear inside the groove hole (112) from one end of the groove hole (112), and a part (15) for transmitting motion capable of transmitting motion rotor (1) assembled, and the movable part (13) and the stationary part (11) are fastened with the fastening element (19). 2. Telescopic design of a linear motor for a sliding door according to claim 1, characterized in that: the stationary part (11) is divided into an upper part (114) and a lower part (115), while the upper part (114) of the stationary part (11) is longer than the lower part (115) of the stationary part (11), and between the upper part (114) and a groove hole (112) is formed by the lower part (115) for inserting the telescopic rod (14). 3. Telescopic design of a linear motor for a sliding door according to claim 2, characterized in that: one end of the telescopic rod (14) is inserted into the slot hole (112), the other end of the telescopic rod (14) is connected to the idler wheel (16), the upper part of the idler wheel (16) is able to slide in the slot hole (112) and move towards the end part the lower part (115) of the stationary part (11), the two sides of the guide wheel (16) are equipped with wheels (12), and the part (15) for transmitting motion is located in the middle of the guide wheel (16). 4. Telescopic design of a linear motor for a sliding door according to any one of paragraphs. 1-3, characterized in that: the other end of the stationary part (11) is equipped with an independent guide wheel (20) without a telescopic rod (14). 5. Telescopic design of a linear motor for a sliding door according to claim 4, characterized in that: an independent guide wheel (20) contains a mounting block, while two sides of the mounting block are equipped with wheels (12) and two sides of the upper part of the mounting block are equipped with insertion parts that can be inserted in different positions of the rotor (1) assembled in the direction of the rotor length (1) assembled. 6. Telescopic design of a linear motor for a sliding door according to claim 4, characterized in that: the set (18) of independent wheels is additionally located between the independent guide wheel (20) and the groove hole (112), and the upper part of the set (18) of independent wheels is displaced in the groove hole (112), while the two sides of the set (18) independent wheels are equipped with wheels (12), and the set (18) of independent wheels is equipped with a fastening hole (181) for interlocking with the fixed part (11). 7. Telescopic design of a linear motor for a sliding door according to claim 1, characterized in that: two movable parts (13) are provided, respectively inserted into the slot hole (112) from the left and right ends. 8. Telescopic design of a linear motor for a sliding door according to claim 7, characterized in that: The telescopic rod (14) is equipped with a groove into which part (15) is inserted with the possibility of shifting to transmit the movement. 9. Telescopic design of a linear motor for a sliding door according to claim 8, characterized in that: the part (15) for transmission of motion contains a vertical rod (151) and a horizontal profile (152), and the horizontal profile (152) is inserted into the groove of the telescopic rod (14). 10. Telescopic design of a linear motor for a sliding door according to claim 9, characterized in that: the horizontal profile (152) is equipped with a screw hole (153), and a screw (154) for fixing the movement transmission part (15) and the telescopic rod (14) is installed in the screw hole (153).

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